Flutter: pub get failed (66)

Question

When i try to implement scoped model, i get this error message:

[flutter_course] flutter packages get Running "flutter packages get" in flutter_course...
Creation of temporary directory failed, path = 'C:\Program Files\flutter.pub-cache_temp\dir' (OS Error: Access is denied. , errno = 5)

name: flutter_course
description: A new Flutter project.


version: 1.0.0+1

environment:
sdk: ">=2.0.0-dev.68.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2
  scoped_model: ^1.0.1

dev_dependencies:
  flutter_test:
    sdk: flutter

Answer 1

Enable in your windows settings the Developer Mode.

Answer 2

Turning on developer mode solved my issue on Windows 10.

1. Delete temp folder in pub cache.
2. Do pub repair flutter pub cache repair.
3. Turn on developer mode in windows settings.
4. Flutter clean and delete pub.lock if exist.
5. Try flutter pub get.

This worked for me.